Shade-roller



E. CARLSON AND IVI. W. RICHARD'.

SHADE ROLLER. PPLlcATloN FILED ocT. 3|. 19|9 Patented May 3,1, 1921.

lll/1111111 EMANURL CARLSON, or YoNKnRs, AND MORDRCAI WILLIAM RICHARD, or'NEW YORK,

N. Y.; SAID RICHARD -AssIeNoR r.ro SAID CARLSON.

SHADE-ROLLER.

To all whom t may concer/rt.'

Be it known that we, EMANUEL CARLSON and MORDECAI WILLIAM RICHARD, both citizens of the United States, and residents of the city of Yonkers and the city of New York,l

respectively, in the counties of Westchester and Bronx, in the State of New York, have invented certain new and useful Improvements in Shade-Rollers, of which the following is a specification.

This invention relates to shade rollers and it consists in an improvement in the ratchet and pawl caps used in connection with the spring of such shade rollers whereby a roller of ypaper tube or other similar fibrous material may be used as well as the usual wooden roller. In the constructions hereto-l fore made in which wooden rollers have been used, the plate bearing the pawls has been permanently secured to the ends of the roller. by means of prong projections, lugs, or other holding means projecting froml the cap,l

these lugs being forced into the wood to grip the roller. I

Our object in this .invention is to provide a ratchet and pawl cap construction which while adapted for use with the usual wooden roller may be used in yconnection with a paper tube shade roller, the material lof which is not suitable for the forcing thereinto of lugs or other holding means lfor securing the Cap to the roller as hereinabove explained. Y

A further object of our invention is to provide a shade roller of paper tube or other fibrous material which shall be strong, firm and durable.

A still further object of our invention is to provide a simpler and cheaper shade roller construction than heretofore made.

Other objects and advantages of this construction will appear from the detailed description and the features of novelty will be particularly pointed out in the claims.

In the drawing accompanying this specification and forming a material part thereof,

F ig. 1 is a longitudinal cross-sectional view of an embodiment of our invention showing our newly improved shade roller and the ratchet and pawl cap attached thereto;

Fig. 2 is a partial detailed cross sectional view taken at right angles to that of Fig. 1;

Fig. 3 is a detailed cross-sectional view Specicaton of Letters Patent. Patented May 31', 1921. Application filed October 31, 1919. Serial 1\To.$334,769.V

Showing our newly improved cap taken along line 3 3 of Fig. 2;

Fig. 4 is an enlarged detailed longitudinal cross sectional view showing the vCap in place on the spring end of the roller;

1g. 5 1s a partial perspective View showing how the plate carrying the vpawls is secured to the outer cap and showing how the I two `are held to the end of the roller; and

F 1g. 6` is a broken away longitudinal cross-.sectional view of a modified form showing the pawls pivoted directly to the Cap.

Referring in detail to the drawing, 10 represents our roller made preferably of paper tube or some other fibrous material or the ordinary wooden roller. To give the paper roller firmness and strength we provide the interior reinforcing blocks 11 secured at suitable spaced intervals by means such as the tacks 12. The spindle 13 carries theusual spring- 14 and said spindle is held in the body against the eXtreme block 11. The lower end 15 of said spindle is enlarged to the inner diameter of the tube so that the spindle as a whole does not rotate by reason of the frictional engagement between said enlarged end and the roller body as will be readily understood. The other end of the spindle. carries a preferably ymetal projection 16 formed with a bilged portion 17. Held between said bilged portion and the end of the spindle is the vcircular plate 18 carrying the pawls 19, 19', pivoted thereto as at 20, 20 in operative relation to said bilged portion 17. To space the pawls from the end of the roller the plate 18 is provided with the guards 21, preferably at equally spaced intervals. These guards may be formed integral with the plate in the form vof arcuate projections therefrom or they may be separate members secured to the plate so as to project therefrom, as will be readily understood.

In the usual construction this plate 18 is secured directly to the end of the wooden roller by means of prong projections or lugs or'other such holding members, and the other cap is then slipped therefrom and secured on the outer surface of the roller. In the present construction, inasmuch as it is not possible to firmly secure the plate directly to the roller, when the latter is made of paper tube or other fibrous material, we

provide means whereby said plate may be secured permanently to the outer cap 22. To this end we form in the plate 18 perforations 23 and similarly form perforations 2% in the cap 22, these perforations adapted to register with each other for the rivets or other suitable fastening means 25 which secure the plate to the cap. We then slip the cap over the end ot the paper roller and secure it thereto by means such as the tacks 26, cooperating with the frictional enga ment between the cap and the roller. n this way the roller together with the plate may rotate relatively to the central opening 27 bounded by the bilge 17. rlhe spring may thus be put under tension and the roller kept in a given position by means of the pawls 19, 19 which drop into said opening 27 as will be readily understood.

In the modified form shown in Fig. 6 we have simplied and cheapened the construction by pivoting the pawls 19, 19 directly to the cap 22, so that when the cap is slipped on the end of the roller these pawls will be disposed in operative relation to the opening 27 as will be readily understood. ln order to space the pawls from the end of the roller, we crimp the cap as at 28 to form the annular shoulder 29 which abuts against the end ot' the roller and thus insures ample space between the pawls and the roller. In this way we eliminate entirely the plate 18 having the guards 21 and thus considerably cheapen the construction, without sacrificing its effectiveness. lt will be noted, however, that in this modified form of our invention shown in Fig. 6, the pawls are secured directly t0 the cap and then the cap secured to the end of the roller thus carrying out one of the objects of my invention in making the construction adapted for rollers of paper tube or fibrous ma terial, as well as on the ordinary wooden roller now in use, in avoiding the. necessity nergens for securing the pawl mechanism separately to the end of the roller.

Having thus described our invention, we claim as new and desire to secure by Letters Patent:

1. In a shade roller the combination a spindle, a roller body rotatable relative thereto, a cap mounted on one end ot said roller body, a plate secured to said cap and free from engagement with said roller body, and pawls pivoted on said plate.

2. In a shade roller the combination of a spindle, a roller body rotatable relative thereto, a cap mounted on one end of said roller body, a plate secured to said cap and pawls pivoted on said plate and tres from engagement with said roller body, and means for spacing said pawls at the end of the rollers.

3. ln a shade roller, the combination ot a spindle, a roller body rotatable relative to said spindle, a cap mounted on one end oi said roller body, a cam plate secured directly to said cap and free from engagement with said roller body, pawls pivoted on said cap, means in connection with said spindle tor receiving said pawls, and guard members projecting from said plate adapted to space the pawls from the end of the roller.

4. In a shade roller having a roller body, a hollow cylindrical cap formed from a single piece of material Open at one end and closed 'at the other end, means for securing said cap against movement on said roller body, a pair of pawls and supporting means for said pawls passing through said cap and through each of said pawls, whereby said cap serves as a support for said pawl supporting means and as the errule for the shade roller.

Signed at New York city, in the county of New York and State of New York.

- EMANUEL CARLSN.

MORUECA WllllrlAFJl RlCllAlll. 

